Stainless steel tees are pipe fittings and pipe connectors. Used at the branch pipe of the main pipe. Stainless steel tees can be divided into equal diameter and reduced diameter. The nozzle ends of butt welded tees are of the same size; The main pipe nozzle size of the reducing tee is the same, while the nozzle size of the branch pipe is smaller than that of the main pipe. Stainless steel tee is a kind of pipe fitting used at the branch of pipeline. For the manufacture of tees with seamless pipes, the commonly used processes at present include hydraulic bulging and hot pressing.
The hydraulic bulging of stainless steel tee is a kind of forming technology that expands the branch pipe through the axial compensation of metal materials. The process is to use a special hydraulic press to inject liquid into the pipe blank with the same diameter as the tee. The two horizontal side cylinders of the hydraulic press move synchronously to extrude the pipe blank, and the volume of the pipe blank becomes smaller after being extruded. The pressure of the liquid in the tube blank increases with the decrease of the tube blank volume. When the pressure required for the expansion of the stainless steel tee branch pipe is reached, the metal material flows along the mold cavity and expands out of the branch pipe under the double action of the side cylinder and the liquid pressure in the tube blank.
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